Lock-hinge



(No Model.)

A. R. BROWILJr. 1300K: HI'NGB.

No. 325,909. Patented Sept. 8, 1885.

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% NVZZ nesas. InzenZaz I N. PETERS PhulD-Ulhognphw. Wlchingtnn. lJ-CvUNITED STATES .PATENT OFFICE.

ALPHEUS ROBERTS BROWN, JR, OF BOSTON, MASSACHUSETTS.

LOOK-HINGE.

SPECIFICATION forming part of Letters Patent No. 325,909, datedSeptember a, 1885.

' Application filed October 3, 1884. (No model.)

To all whom it may cancer-n:

Be it known-that I, ALPHEUs ROBERTS BROWN, J r., a citizen of the UnitedStates, re

siding at Boston, (Somerville,) in the county of Suffolk and State ofMassachusetts, have invented certain new and useful Improvemenis inLock-Hinges; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, and to letters orfigures of reference marked thereon, which form a part of thisspecification.

This invention relates to lock-hinges, so called, in which means areadapted to secure a blind in any fixed position, either closed orpartially or entirely open; and it consists in an improved form of hingewhereby the strength of the latter is materially increased, and at thesame time protection from ice and snow is afforded the lockinglever-latch and the peripherally-notched plate, the action of which willbe hereinafter explained.

The accompanying drawings represent, in Figure 1, a side elevation of ablind and blindfastener containing my invention. Fig. 2 is a verticalsection of the same with the blind half open, while Fig. 3 is ahorizontal section on line 1 2 in Fig. 2. Fig. 4 represents amodification.

In such drawings, A represents the hinge as an entirety, composed of twoprincipal parts, B G, the former being secured to the window-frame asusual, the latter attached to and moving with the blind. In this device,which is adapted to operate as a blind-fastener, I have made severalessential improvements as regards the hinge itself, which gives muchgreater bearing-surface, consequently more strength, and at the sametime answers as a complete protection to the operative parts, which,with the ordinary hinge, have hitherto been seriously obstructed intheir action and rendered useless by accumulation of snow and ice uponthem. These improvements consist in forming and casting a metal plate,D,'secured by bolts or otherwise to'thewindowframe, (represented at E,)while unitedthereto by a short arm or bracket is a circular metal head,F, centrally bored ate, and further provided with while the lips z 13 ofthe caps settle over the peripheral vertical notches b bf b whosefunctions are to receive a latch and maintain the blind locked in anydesired position, accord ing to the location of these notches, which maybe only two in number, and would then main; tain the blind eitherentirely open or closedQ To complete this hinge and afford means toattach the blind to the fixed portion B, I have constructed the pieceGwith acircular recessed 6c head, G, whose interior diameter is equal toor slightly greater than the extreme diameter\ of the head or disk F.This cap contains a central stud or pintle, c, which fits into the lhole a, before mentioned, in the head F. Furthermore, a short slottedarm, (1, open at the bottom, unites the cap G to the plate H, which isfirmly screwed to the blind. The slot 6, formed in the arm d, contains aspring-actuated latch, f, pivoted at g to the lower part of the arm d,and is operated by a lever, h, located upon the inside of the blind;hence the latter, when closed, cannot be opened from without-a decidedadvantage. The upper hinge, A, is similar to the lower, with theexception that the peripheral slots on the head F are omitted, as wellas the lever and latch, as those-parts on the lower hinge are fullysufficient to effectually lock the blind and hold it in any desiredposition.

To adjust the two parts of the hinges A A together or to hang the blind,the two pintles c c are centered over the holes bored in, the heads,when the blind is allowed to drop, the pintles sliding into their properplaces,

periphery of the heads, concealing the slots b b, &c., and preventingthe action of the weather on anypart thereof. It is evident that thelips M materially aid the pintles in supporting the blind, while the topface of the headsF F and the bottom of the recesses j j in the caps G Gform a secure bearing for the blind upon which to rest. After theblind'hasbeen hung depression of the lever h against the tension of thespring which actuates the latch disengages the nose of the latter fromany one notch, when the blind may be moved. The lever is k, thenreleased, when the latch again enters a slot to maintain the blind fixedin that position until further movement is desired.

I have formed the nose of the latch and the slots which it engagesfrustums of pyramids in cross-section that as wear ensues the latchshall always tightly fit said slots, and no rattle or motion of theblind ensues when locked.

5 I do not desire to be limited to the precise construction asheretofore premised, by which the two heads F'G are united when theblind is hung, and in Fig. 4 of the drawings I have represented amodification, in which the pintle c is formed integral with the lowerhead, F, and projects upward into the hole a, bored in the head G. Thiseffectually prevents any moisture from collecting in the hole a, whichmight occur in case the parts were constructed as shown in Fig. 2 andaffect opening or closing of the blind. In this modification the notchesand latch are used, one of the former, I), being shown. The object ofFig. 4 is simply to illustrate the inversion of the parts a e, no otherchange being made or required.

M I am aware that it is not broadly new to pro- .vid'ea hinge with aspring-latch catching into one of a series of notches to lock the hingeopen. I am further aware that it is not broadly new to provide a hingewith two disks or a head and cap, one of said parts inclosing the otherto strengthen the hinge, and the said parts being also connected by apintle and recess. I do not claim, broadly, either of these 0constructions and combinations; but

I claim 1. In a blind-fastener, the combination of a head and a cap thatincloses it with a pintle formed on one of said parts and fitting into a5 recess in the other, and a latch attached to one of said parts andcatching into a notch in the other, the flanges of the cap and theperiphery of the head serving to take the strain from the pintle,substantially as set forth. 4o

2. In a blindfastener, A, the combination, with the recessed cap G,pintle c, and slotted 7 arm. (1, of the inelosed head F, with peripheralslots 1) b, the'spring-actuated latch f, and

lever h,' combined to operate substantially as 5 set forth.

In testimony whereof I afiix my signature in presence of two witnesses.ALPHEUS ROBERTS BROWN, JIL.

Witnesses:

H. E. LODGE, 1 A. F. HAYDEN.

